John b



(No Model.)

J.B.,BRADBN. BAILER FOR OIL 0R LIKE WELLS.

No. 546,267. Patented Sept. 10, i895.

UNITED STATES PATENT OFFICE.

JOHN lBRADEN, OF MODONALD, PENNSYLVANIA, ASSIGNOR OF ONE-I-IALF TO DAVID LAMB, OF SAME PLACE.

BAlLER FOR OIL OR LIKE WELLS.

SPECIFICATION forming part of Letters Patent No. 546,267, dated September 10, 1895.

l Application led September 1, 139% Serial No. 521,973. (No model.)

To a/ZZ whom it may concern.'

Be it known that I, JOHN B. BRADEN, a resident of McDonald, in the county of Washington and State of Pennsylvania, have invented a new and useful Improvement in Bailers for Oil or Like Wells; and I do hereby declare the following to be a full, clear, and exact description thereof. My invention relates to hailers to be used in connection with 4the drilling of wells, prospecting for minerals, hydrographie operations, or other purposes for which such a device may be found applicable.

My invention relates more particularly to that class of bailers in which an inwardlyopening valve is arranged at the bottom thereof, so that when the bailer is lowered into the well said valve will open upwardly and allow the detritus to enter the tube, when upon the withdrawal of the bailer said valve will drop back into place and prevent the escape of said detritus. The difficulty with the employment of this form of bailer lies in the fact that it is necessary upon the withdrawal of the bailer from the well to invert the bailer and the tube connected thereto in order to allow for the escape of the detritus. Owing to the necessity of inverting the bailer and the said tube, it has necessarily been constructed of a short length for convenience in handling, as it would be practically impossible to invert a tube of any great length.

The object of my invention, therefore, isv

to overcome this difficulty and to provide means for allowing for the escape of the detritus from the lowerend of the tube without inverting the same.

To enable others skilled inthe art to make and use my invention, I will describe the same more fully, referring to the accompanying drawings, in which- Figure l is a vertical section of my improved bailer, showingthe movable valve-seat locked in position. Fig. 2 is a like view showing the valve-seat unlocked. Fig. 3 is an enlarged perspective view of the valve and valve-seat.

Like letters indicate like parts in each.

The bailer o., which may be of any desired size, has the screw-threads a at the upper end thereof, by which it may be attached to the more fully hereinafter appear.

tube b, said tube being of any desired length. Hinged at the lower end of the bailerais the valve-seat c, said valve-seat having the lug` c thereon, which iits within a seat c2 in the 55 bailer, while a pin c3 passes through said lug c',

vthus permitting of the swinging of the said valve-seat c. The bailer o is cut away, as at.

a4, to permit of the dropping of the valve-seat c to its full extent. This leaves the leg a, 6c upon which the bailer rests when it is lowered into the well, or when' it has been raised and it is desired to discharge the contents, as will The interior of the bailer a is provided with the shoulder a2, with which the valve-seat c engages when said valve-seat is locked in position. In this way when said'valve-seat c is locked in place it is entirely within the circumference of the tubular body portion of the bailer, so that 7o when the bailer is lowered into the well no part of the valve-seat projects beyond the circumference of the tubular body portion. 'lhe valve-seat c is furthermore provided with the opening CZ, which is normally closed by the clack-valve e, said clack-valve having the lugs e thereon, through which the pin f passes through a lug g on said valve-seat, whereby said clank-valve is adapted to open upwardly within the bailer when said bailer 8o is in position, as will hereinafter more fully appear. In order to hold said valve-seat upA in engagement with shoulder o? of the bailer,

I employ the spring h, said spring 7L being secured within a groove a3, formed in the eX- terior of the bailer, the front end of said spring having an inwardly-projecting clip h' passing through an opening c5 in said bailer and adapt-ed to engage with the valve-seat c and holding tbesaine normally up against the no shoulder d3 within the said bailer ct.

When my improved bailer is in use, it is lowered into the well in the ordinary manner until leg a rests upon the bottom, whereupon the @lack-valve c will be forced upwardly, a vacuum having been created above the said valve by suitable pumping apparatus to allow the contents of the well to fill the bailer and tube. As soon as the tube has become titled the bailer is withdrawn from the well Ico in the ordinary manner, the clack-valve e of course falling back to its original position seat coming into contact With any obstruction u pon the valve-seat c, and closingthe opening d to prevent the escape of the contents. When the bailer has been Withdrawn from the Well, itis desired to empty the contents thereof. The clip 77, on the spring h is freed from engagement with the valve-seat c by forcing it out through an opening a5. This can be done while the leg a6 is standing on the drillingfloor. This disengagement of the valve-seat c from the clip h permits of the lowering of the valve-seat c to the position shown in Fig. 2, when the contents of the bailer ct and tube ZJ are free to escape from the lower end of thel bailer. lt is thus readily apparent that the tube Z) may be of any desired length, and yet all of its contents can readily be discharged therefrom. This construction obviates the necessity of inverting the tube in order t0 discharge the contents thereof, which has been the only means heretofore of discharg ing the contents Where a slack-Valve was einployed.

By having the valve-seat and its locking devices entirely Within the circumference of the tubular body portion of the bailer there is no liability of any portion of said valveon the Walls of the Well in the lowering of the bailer;

`What I claim as my invention, and desire to secure by Letters Patent, is-

1. A bailer for oil or like Wells having a tubular body portion, a valve seat hinged to yto permit the valve seat to swing down when released, substantially as and for the purposes set forth.

2. A bailer for oil or like Wells having a tubular body portion, a portion of said tubular body at the lower end thereof being cut away, a valve-seat hinged to the base of the solid portion of said tubular body on the side thereof cut away, a fastening device for holding said valve seat in place, said valve seat being entirely Within the circumference of the tubular body, and a clack-valve hinged to the valve-seat and seating itself thereon, substantially as set forth.

In testimony whereof the said 'JOHN B. BRADEN, have hereunto set my hand.

. JOHN B. BRADEN.

'Vitnesses:

Roar. D. TOTTEN, ROBERT C. TOTTEN. 

